Ever wonder why horrible, dated games like WoW have so many sycophantic fans? It's called "cognitive dissonance" my friends. It's something you owe to yourself to learn about, because MMO producers along with many other businesses are using it to keep you paying.
Here's a great article on it. Read the article, and maybe you can avoid being manipulated a bit. Unfortunately, cognitive dissonance is part of human nature, so even being aware of it won't protect you 100% of the time. But I'll take knowledge over ignorance any day of the week.